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AD5555 функция - 16-/14-Bit DACs - Analog Devices

Номер произв AD5555
Описание 16-/14-Bit DACs
Производители Analog Devices 
логотип Analog Devices логотип 
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AD5555 Даташит, Описание, Даташиты
Data Sheet
FEATURES
16-bit resolution AD5545
14-bit resolution AD5555
±1 LSB DNL monotonic
±1 LSB INL
2 mA full-scale current ±20%, with VREF = 10 V
0.5 µs settling time
2Q multiplying reference-input 6.9 MHz BW
Zero or midscale power-up preset
Zero or midscale dynamic reset
3-wire interface
Compact 16-lead TSSOP package
APPLICATIONS
Automatic test equipment
Instrumentation
Digitally controlled calibration
Industrial control PLCs
Programmable attenuator
PRODUCT OVERVIEW
The AD5545/AD5555 are 16-bit/14-bit, current-output, digital-
to-analog converters designed to operate from a 4.5 V to 5.5 V
supply range.
An external reference is needed to establish the full-scale
output-current. An internal feedback resistor (RFB) enhances
the resistance and temperature tracking when combined
with an external op amp to complete the I-to-V conversion.
A serial data interface offers high speed, 3-wire microcontroller
compatible inputs using serial data in (SDI), clock (CLK), and
chip select (CS). Additional LDAC function allows
simultaneous update operation. The internal reset logic allows
power-on preset and dynamic reset at either zero or midscale,
depending on the state of the MSB pin.
The AD5545/AD5555 are packaged in the compact TSSOP-16
package and can be operated from −40°C to +85°C.
Dual, Current-Output,
Serial-Input, 16-/14-Bit DACs
AD5545/AD5555
FUNCTIONAL BLOCK DIAGRAM
VREFA VREFB
16 OR 14
VDD
D0..DX
SDI INPUT
REGISTER R
DAC A
REGISTER R
CS
CLK
EN
DAC A
B
ADDR
DECODE
DGND
INPUT
REGISTER R
DAC B
REGISTER R
POWER-
ON
RESET
RS MSB
LDAC
Figure 1.
DAC A
DAC B
RFBA
IOUTA
AGNDA
RFBB
IOUTB
AGNDB
AD5545/
AD5555
02918-0-001
Rev. I
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2003–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com





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